diff --git a/lang-cli/Cargo.toml b/lang-cli/Cargo.toml
index 218265029..b09a004a0 100644
--- a/lang-cli/Cargo.toml
+++ b/lang-cli/Cargo.toml
@@ -20,7 +20,7 @@ argh = "0.1"
 
 serde_json = { version = "1.0", optional = true }
 miette = { version = "4.7", features = ["fancy"] }
-thiserror = "1.0"
+thiserror = "2.0"
 
 [features]
 default = ["json"]
diff --git a/lang-lexer/Cargo.toml b/lang-lexer/Cargo.toml
index 5016f5f5f..2fe08a710 100644
--- a/lang-lexer/Cargo.toml
+++ b/lang-lexer/Cargo.toml
@@ -16,7 +16,7 @@ categories = ["parser-implementations", "rendering"]
 glsl-lang-types = "=0.7.1"
 lang-util = { version = "=0.7.1", features = ["lalrpop"] }
 
-thiserror = "1.0"
+thiserror = "2.0"
 
 rserde = { version = "1.0", optional = true, features = ["derive"], package = "serde" }
 
diff --git a/lang-pp/Cargo.toml b/lang-pp/Cargo.toml
index 978f669eb..8f4cae1e3 100644
--- a/lang-pp/Cargo.toml
+++ b/lang-pp/Cargo.toml
@@ -17,7 +17,7 @@ build = "build.rs"
 lang-util = "=0.7.1"
 
 string_cache = "0.8"
-thiserror = "1.0"
+thiserror = "2.0"
 arrayvec = "0.7"
 derive_more = { version = "1.0", features = ["display"] }
 
diff --git a/lang-types/Cargo.toml b/lang-types/Cargo.toml
index 512ce2f1e..877338a3d 100644
--- a/lang-types/Cargo.toml
+++ b/lang-types/Cargo.toml
@@ -14,7 +14,7 @@ categories = ["rendering"]
 
 [dependencies]
 lang-util = "=0.7.1"
-thiserror = "1.0"
+thiserror = "2.0"
 
 rserde = { version = "1.0", optional = true, features = ["derive"], package = "serde" }
 
diff --git a/lang/Cargo.toml b/lang/Cargo.toml
index 173001454..99a7f1687 100644
--- a/lang/Cargo.toml
+++ b/lang/Cargo.toml
@@ -15,7 +15,7 @@ categories = ["parser-implementations", "rendering"]
 [dependencies]
 lalrpop-util = { version = "0.20.0", default-features = false, features = ["std"] }
 once_cell = "1.17.1"
-thiserror = "1.0"
+thiserror = "2.0"
 
 lang-util = { version = "=0.7.1", features = ["lalrpop"] }
 glsl-lang-pp = { version = "=0.7.1", optional = true }